Keen — Flow Developer User Guide

This guide is for flow developers: people who design AI-agent pipelines on Keen. It covers what you do in the platform UI, the chat experience, and the VS Code extension.

It does not cover how Keen is built internally (microservices, infrastructure, message buses) — that's not your concern. If you ever need that, ask the platform team.

New here? Start with onboarding

If this is your first day on the sandbox, follow the Onboarding walkthrough end-to-end. Nine sections take you from "I don't have access yet" to a working agent talking back in the Chat:

1. Get sandbox access
2. Set up your local environment
3. Wire your project to a Space
4. Build your first agent
5. Deploy
6. Verify in the Chat
7. Debug
8. Customize the Chat UI
9. Advanced — manual chat I/O via Script Nodes

Reference sections

• Organization — the /org pages: managing agents, projects, configuration.
• Chat — the user-facing chat where flows are triggered.
• Keen Builder (VS Code extension) — design, debug, and ship flows.
• Tooling — give an agent a registered capability it can call mid-conversation.

How to use this guide

1. New here? Run through Onboarding — it's the fastest path to a working flow.
2. Looking up a node? Go to the Node reference — one page per node type.
3. Writing a Script Node? Script Node lists every built-in library you can import.
4. Building a tool? Tooling covers script vs flow tools, the wire format, retries, and error families.